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Top Forums UNIX for Advanced & Expert Users Merge a group of lines into single line Post 302462883 by erick_tuk on Friday 15th of October 2010 08:46:27 AM
Old 10-15-2010
could you explain this to me further?

Code:
while read line
do
   if [[ $line =~ ^SN(.*) ]] <-- line that starts with SN and whatever
   then
      [[ -n $out ]] && echo $out    <--when was $out defined or is it reserved?
      out="$line"
   else
      out="$out, $line"
   fi
done  < infile
echo $out


Last edited by radoulov; 10-15-2010 at 09:47 AM.. Reason: Code tags, please!
 

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line(1)                                                            User Commands                                                           line(1)

NAME
line - read one line SYNOPSIS
line DESCRIPTION
The line utility copies one line (up to and including a new-line) from the standard input and writes it on the standard output. It returns an exit status of 1 on EOF and always prints at least a new-line. It is often used within shell files to read from the user's terminal. EXIT STATUS
Exit status is: 0 Successful completion >0 End-of-file on input. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
sh(1), read(2), attributes(5) SunOS 5.10 1 Feb 1995 line(1)
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